1. Affected areas become progressively more alopecic.
受到影响的区域的毛发逐步脱落。
2. Clinical examination showed a yellow alopecic plaque which had a sharp edge and a rough surface on her right scalp, local erosion and exudation was obvious.
体格检查示右侧头皮黄色无毛斑块，边界清楚，表面粗糙，局部糜烂渗液。